National Geographic (Canada)

A piece of salmon comes up positive for cocaine; Syrian carpets have something suspicious woven into the fabric.

A man arrives from Beijing with strong readings for narcotics; three men want to visit a temple that hasn't been built yet.

A woman's belongings are positive for heroin; a Malaysian man arrives looking for work.

A woman with protruding pants attracts the attention of Customs; a passenger would rather go to court than pay a fine.

On a steep hillside, Bjoern risks everything to rescue a tractor that threatens to fall; Thord gets stuck in the mud after a truck sinks deep in a farmers' field; when his tow-truck can't get a grip, he must think on his feet.

A tricky rescue of an excavator forces Thord to find solutions, but he's in double trouble when rookie Terje messes up.

When a salmon truck crashes into a ditch, it kicks off a night of havoc for Thord; with truck drivers in trouble all over his territory, Thord's team is pushed to the limit.

Thord pits his life against speeding traffic to rescue a stranded truck.

Wild weather and traffic convoys cause carnage on Thord's mountain.

Thord takes tow truck driver, Erlend, along to rescue a crashed van near a graveyard at night; they end up spooked while trying to pull the van up the ice-covered slope of a 20 degree hill.

There is chaos on the main road after a truck driver skids on ice but refuses help from Thord; another vehicle runs into serious trouble and needs urgent rescue.

In deep snow, Thord gets stressed when a winch failure threatens a rescue.

The train station is severely tested during the Formula 1 Grand Prix.

The rescue operation is a tricky one as the truck in question is on the verge of tipping; Thord decides to entrust Bjorn with his life and crawls under the trailer during the pull.

In deep snow, Thord gets stressed when a winch failure threatens a rescue.

The train station is severely tested during the Formula 1 Grand Prix.

The rescue operation is a tricky one as the truck in question is on the verge of tipping; Thord decides to entrust Bjorn with his life and crawls under the trailer during the pull.

On a steep hillside, Bjoern risks everything to rescue a tractor that threatens to fall; Thord gets stuck in the mud after a truck sinks deep in a farmers' field; when his tow-truck can't get a grip, he must think on his feet.

A tricky rescue of an excavator forces Thord to find solutions, but he's in double trouble when rookie Terje messes up.

When a salmon truck crashes into a ditch, it kicks off a night of havoc for Thord; with truck drivers in trouble all over his territory, Thord's team is pushed to the limit.

Thord pits his life against speeding traffic to rescue a stranded truck.

A woman tries to smuggle an expensive gift into Australia; a package from Hong Kong looks suspicious.

A fidgety passenger has officers on high alert because of what's found under his home's floorboards.

A musician claims to have special powers that help her see the future.

A father and son from China have four suitcases full of undeclared food; an immigration raid targets illegal workers.

Mysterious human-shaped shadow; a little boy travels hundreds of miles in a second; crystal skulls.

On her first solo trip, Steph Custance braves one of the longest ice crossings on the map; Darrell Ward attempts a triple delivery in a single day; an engine fire stops Lisa Kelly in her tracks; Todd Dewey celebrates his birthday stuck on a road.

Ken moves across Moose Creek in an effort to change his luck; tension grows as Bernie's junior crew makes mistakes; Karl's night crew slows him down.

A woman tries to smuggle an expensive gift into Australia; a package from Hong Kong looks suspicious.

A fidgety passenger has officers on high alert because of what's found under his home's floorboards.

A musician claims to have special powers that help her see the future.

A father and son from China have four suitcases full of undeclared food; an immigration raid targets illegal workers.

Torrential rain closes two runways as an incoming flight deals with an onboard medical emergency; a fire training drill turns into a real emergency.

Sydney Airport is on high alert for the arrival of the Prime Minister of Singapore, and Duty Manager Mel's favorite pop star; security searches for a woman reported to have collapsed on the street.

An emergency training exercise encounters disturbance due to dangerous winds, flight board failure, and a real-life emergency of an explosion in a passenger terminal.

Security breaches, an air ambulance emergency, drugs found in an unattended bag and an angry passenger add up to a busy Friday for Duty Manager George.

Fresh from nine months of training at the Border Force Academy, Labrador Warner faces his first day on the job as a drug sniffer; security managers test their screening teams by trying to smuggle a fake bomb past them.

A look at Sydney Airport's never-ending maintenance; featuring the changing of a wind sock, repairing a stuck airbridge and putting out a potentially catastrophic fire.

The busy Christmas season picks up, with thousands of families going on holiday, but the airport is shut down when an unidentified white powder is discovered on board an incoming flight.

Operating under a noise curfew, Sydney Airport faces pressure to complete 900 plane movements in a day; duty manager George is confronted by a suspicious package.

Brad has just 90 minutes to turn around an Air India flight; a kangaroo keeps Trent on his toes and baggage handler Brodie battles jams.

Torrential rain closes two runways as an incoming flight deals with an onboard medical emergency; a fire training drill turns into a real emergency.

Operating under a noise curfew, Sydney Airport faces pressure to complete 900 plane movements in a day; duty manager George is confronted by a suspicious package.

Brad has just 90 minutes to turn around an Air India flight; a kangaroo keeps Trent on his toes and baggage handler Brodie battles jams.

The busy Christmas season picks up, with thousands of families going on holiday, but the airport is shut down when an unidentified white powder is discovered on board an incoming flight.

Torrential rain closes two runways as an incoming flight deals with an onboard medical emergency; a fire training drill turns into a real emergency.

Sydney Airport is on high alert for the arrival of the Prime Minister of Singapore, and Duty Manager Mel's favorite pop star; security searches for a woman reported to have collapsed on the street.

An emergency training exercise encounters disturbance due to dangerous winds, flight board failure, and a real-life emergency of an explosion in a passenger terminal.

Security breaches, an air ambulance emergency, drugs found in an unattended bag and an angry passenger add up to a busy Friday for Duty Manager George.

An American tourist is caught renting by the hour, but insists she needs to meet up with her boyfriend.

At O'Hare International, a returning American's bananas cause a slip-up in secondary; a mother covers for her kid at Detroit's Ambassador Bridge; a car search is brought to a head in Washington State.

Officers search for a fugitive in Washington State; a cook is questioned on his way to Las Vegas; a canine flags several packages in Chicago; x-rays discover anomalies in Port Huron cargo.

An officer's expertise in body language pays off; a German rock band in Detroit; a hole in a traveler's story.

An earth-shattering boom; a paranormal fog on Lake Michigan; a blinding double flash of light.

Todd Dewey must fix his truck or find himself stranded a hundred miles from the nearest town; Alex Debogorski confronts a creek in the middle of the road; Art Burke receives bad news; Lisa Kelly battles an ice crossing unlike any she's seen.

Cold weather threatens the miners' operations; Ken contemplates laying off half his crew; Karl's workers hunt moose after their sluice box ices over; Big Al battles beavers.

An American tourist is caught renting by the hour, but insists she needs to meet up with her boyfriend.

At O'Hare International, a returning American's bananas cause a slip-up in secondary; a mother covers for her kid at Detroit's Ambassador Bridge; a car search is brought to a head in Washington State.

Officers search for a fugitive in Washington State; a cook is questioned on his way to Las Vegas; a canine flags several packages in Chicago; x-rays discover anomalies in Port Huron cargo.

An officer's expertise in body language pays off; a German rock band in Detroit; a hole in a traveler's story.

Cesar helps an excited pit bull and matches a family with their forever dog.

Cesar works with a confused Goldendoodle and a fearful pet parent.

Renowned dog behaviorist Cesar Millan comes back not only to rehabilitate dogs, but to train pet parents as well. With empty shelters and dog adoptions at a record high, his return to television gives new pet parents the tools they need to teach their dogs good habits and shed the bad ones. In addition, he helps pet parents better understand the connection that dogs have with their humans, and how

Cesar finds a perfect dog for a single mom and helps a biting mini pinscher.

Cesar rehabs an overprotective Great Dane mix.

A Chihuahua poses a threat to a pet mom's romantic life.

Cesar finds a dog to help a woman heal; he helps a territorial Maltipom.

A pioneering gorilla treatment, rhino fitness tracker and tortoise party.

Cesar rehabs two aggressive German Shepherds, and one very loud Min Pin Mix.

A pioneering gorilla treatment, rhino fitness tracker and tortoise party.